Device for truing spherical bodies.



8;]. WARLICK & .l, H BUNKER;

DEVICE FOR TRUING SPHERICAL BODI ES.

APPLICATION FHED NOV. 12, 1913.

1,156,953. Patented Oct. 19, 1915.

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" To all whom it mayioonoern: V

Be it known that we,SA1vr J. WARLICKY and JAMES H. BUNKER, citizens of the United such as will enable others skilled in the art to which it appertains to'make and use the same.

This invention relates to devices for tru-,

ing spherical bodies and particularly adapted for truing billiard balls;

' The object of the invention resides in the provision of adevice of the character referred to through the instrumentality of which a billiard ball may be rendered a true sphere with ease and facility and in a comparatively short time.

A further object of the invention resides in the provision of a device of the type named which is'adapted to effect not only the truing of a billiard ball but also the finishing and polishing of same after it has been trued.

A still further object of the invention resides in the provision of a device of the character named which will be simple in construction and which maybe manufac tured and sold at a comparatively small cost.

With the above and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully described and particularly pointed out in the appended claims.

In describing the-invention in detail ref erence will be had to the accompanying drawings wherein like characters of reference denote corresponding parts in the several views, and in which V Figure 1 is a view in elevation of the device with the cover in section; Fig. 2, a section on the line 22 of Fig. 1 with a bil- V combination of a base having a circular-reliard ball operatively associated therewith; Fig. 3, a view similar to Fig. 2 showing the cutting ring reversed in position so as to permit of polishing the trued billiardball,

V Specification of Letters Patent.

Patented Oct. 19, 1915.

Application filed November 12,1913. seriauvasoaeev.

and Fig. 4 a detail perspective view of the I cutting and polishing ring. 7 7

Referring to the drawings the device is shown as comprising a base 10 having a circular recess 11 formedin the top thereofl.

The bottomv of this recess 11 is provided with a dished portion 12. Removably seated in the recess 11 is a cutting and polishing rlng 13. This ring is of a size to snugly seat in the recess 11 and when so; seated a portion of the ring'will extend a slight distance above the top of the base 10. One end of the ring 13 is provided with an annular groove 14 and the portionof the ring between the annulargrooveand'the inner wall of the ring is ground to form an annular inwardly directed cutting edge 15.

In the use of the device the ball to be trued is placed within the ring 13 as shown in Figs. 1 and 2, the diameter of the annular cutting edge 15 being less than the diameter of the ball, indicated at B, it will be obvious that the cutting edge will engage the surface of the ball at just one side of the widest portion of the latter. The ball is then lapped by the index fingers and thumbs of both hands, the fingers lying over the ball on f the far side and the thumbs over the near side. The hands arethen moved to rotate the ball toward the operator through the fore. The inner edge of the end of the ring with which the ball is engaged in Fig. 3 be ing comparatively dull and smooth will efficiently polish the ball."

The device is provided with a cover 16 suitably recessed to receive the upper por- I tion of the ring 13, the ring thereby serving as a means for holding the cover against lateral movement.

What is claimedis 1. In a device of the classd'escribed the cess formed in its top and said recess having its bottom dished'centrally, a ring removably seated in said recess, and an 111* Ward directed annular knife element formed In testimony whereof, We aflix our signaintegral with the ring at one end thereof. tures, in the presence of two Witnesses.

2. In a device of the class described, the SAM J. WARLICK. combination of a base having a circular re- JAMES H. BUNKER. 5 cess formed in its top, and a ring removably Witnesses:

secured in said recess and having an in- L. D. IKUD, wardly directed annular knife element. ERNEST GRIFFIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G. 

